Blechnum nudum

Common Name:

Fishbone Water-fern



Distribution (from Flora of Victoria):

Wannon, Grampians, Midlands, Victorian Volcanic Plain, Otway Range, Eastern Highlands, Gippsland Plain, Gippsland Highlands, Wilsons Promontory, East Gippsland (CDEJKNPRSTVWZ) also SA, Qld, NSW, Tas
Map - Australasian Virtual Herbarium

Distribution and ecological preference at Wilsons Promontory (if known):

Common on flat ground around streams 1

Flower Description:



Fern to 60 cm tall (rarely larger) forming a rosette 2

Distinguishing characteristics (within family/genus):

Fertile and sterile fronds appear different. This species is most easily confused with B. chambersii, it is distinguished from this species by its erect fertile frond and pinnae that are not toothed 2
Blechnum nudum is more common.


Image: Ruby Wilson

Links to more images:

Atlas of Living Australia MELU

Links to description of this species:

Flora of Australia NSW Flora VicFlora

Conservation status:

Not threatened


1 Meagher, D. and Kohout, M. (2001). “A field guide to Wilsons Promontory”. Oxford University Press, South Melbourne, Vic.
2 Walsh, N. G. and Entwisle, T. J. “Flora of Victoria”, volumes 2 (1994), 3 (1996) and 4 (1999). Inkata Press, Port Melbourne, Victoria